<table class="table table-striped">
  <tr
    data-ng-repeat="(key, value) in element.label track by $index">
    <td>{{key}}</td>
    <td><input type="text" class="form-control"
               id="translation-{{key}}" value="{{value}}"
               data-ng-model="element.label[key]"
               data-ng-keyup="saveTranslation(this)"
    /></td>
  </tr>
</table>
